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bacnet-stack/demo/dcc/main.c
Patrick Grimm 01349ec9e8 fork from http://sourceforge.net/projects/bacnet/
2013-03-21 22:53:31 +01:00

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/**************************************************************************
*
* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
/* command line tool demo for BACnet stack */
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h> /* for time */
#include <errno.h>
#include "bactext.h"
#include "iam.h"
#include "arf.h"
#include "tsm.h"
#include "address.h"
#include "config.h"
#include "bacdef.h"
#include "npdu.h"
#include "apdu.h"
#include "device.h"
#include "net.h"
#include "datalink.h"
#include "whois.h"
#include "dcc.h"
/* some demo stuff needed */
#include "filename.h"
#include "handlers.h"
#include "client.h"
#include "txbuf.h"
#include "dlenv.h"
/* buffer used for receive */
static uint8_t Rx_Buf[MAX_MPDU] = { 0 };
/* global variables used in this file */
static uint32_t Target_Device_Object_Instance = BACNET_MAX_INSTANCE;
static BACNET_ADDRESS Target_Address;
static uint16_t Communication_Timeout_Minutes = 0;
static BACNET_COMMUNICATION_ENABLE_DISABLE Communication_State =
COMMUNICATION_ENABLE;
static char *Communication_Password = NULL;
static bool Error_Detected = false;
static void MyErrorHandler(
BACNET_ADDRESS * src,
uint8_t invoke_id,
BACNET_ERROR_CLASS error_class,
BACNET_ERROR_CODE error_code)
{
/* FIXME: verify src and invoke id */
(void) src;
(void) invoke_id;
printf("BACnet Error: %s: %s\r\n", bactext_error_class_name(error_class),
bactext_error_code_name(error_code));
Error_Detected = true;
}
void MyAbortHandler(
BACNET_ADDRESS * src,
uint8_t invoke_id,
uint8_t abort_reason,
bool server)
{
/* FIXME: verify src and invoke id */
(void) src;
(void) invoke_id;
(void) server;
printf("BACnet Abort: %s\r\n", bactext_abort_reason_name(abort_reason));
Error_Detected = true;
}
void MyRejectHandler(
BACNET_ADDRESS * src,
uint8_t invoke_id,
uint8_t reject_reason)
{
/* FIXME: verify src and invoke id */
(void) src;
(void) invoke_id;
printf("BACnet Reject: %s\r\n", bactext_reject_reason_name(reject_reason));
Error_Detected = true;
}
void MyDeviceCommunicationControlSimpleAckHandler(
BACNET_ADDRESS * src,
uint8_t invoke_id)
{
(void) src;
(void) invoke_id;
printf("DeviceCommunicationControl Acknowledged!\r\n");
}
static void Init_Service_Handlers(
void)
{
Device_Init(NULL);
/* we need to handle who-is
to support dynamic device binding to us */
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);
/* handle i-am to support binding to other devices */
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_I_AM, handler_i_am_bind);
/* set the handler for all the services we don't implement
It is required to send the proper reject message... */
apdu_set_unrecognized_service_handler_handler
(handler_unrecognized_service);
/* we must implement read property - it's required! */
apdu_set_confirmed_handler(SERVICE_CONFIRMED_READ_PROPERTY,
handler_read_property);
/* handle communication so we can shutup when asked */
apdu_set_confirmed_handler(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
handler_device_communication_control);
/* handle the ack coming back */
apdu_set_confirmed_simple_ack_handler
(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
MyDeviceCommunicationControlSimpleAckHandler);
/* handle any errors coming back */
apdu_set_error_handler(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
MyErrorHandler);
apdu_set_abort_handler(MyAbortHandler);
apdu_set_reject_handler(MyRejectHandler);
}
int main(
int argc,
char *argv[])
{
BACNET_ADDRESS src = {
0
}; /* address where message came from */
uint16_t pdu_len = 0;
unsigned timeout = 100; /* milliseconds */
unsigned max_apdu = 0;
time_t elapsed_seconds = 0;
time_t last_seconds = 0;
time_t current_seconds = 0;
time_t timeout_seconds = 0;
uint8_t invoke_id = 0;
bool found = false;
if (argc < 3) {
printf("Usage: %s device-instance state timeout [password]\r\n"
"Send BACnet DeviceCommunicationControl service to device.\r\n"
"\r\n" "The device-instance can be 0 to %d.\r\n"
"Possible state values:\r\n" " 0=enable\r\n" " 1=disable\r\n"
" 2=disable-initiation\r\n"
"The timeout can be 0 for infinite, or a value in minutes for disable.\r\n"
"The optional password is a character string of 1 to 20 characters.\r\n"
"Use BACNET_IFACE environment variable for the interface\r\n",
filename_remove_path(argv[0]), BACNET_MAX_INSTANCE - 1);
return 0;
}
/* decode the command line parameters */
Target_Device_Object_Instance = strtol(argv[1], NULL, 0);
Communication_State = (uint16_t) strtol(argv[2], NULL, 0);
Communication_Timeout_Minutes = (uint16_t) strtol(argv[3], NULL, 0);
/* optional password */
if (argc > 4)
Communication_Password = argv[4];
if (Target_Device_Object_Instance >= BACNET_MAX_INSTANCE) {
fprintf(stderr, "device-instance=%u - it must be less than %u\r\n",
Target_Device_Object_Instance, BACNET_MAX_INSTANCE);
return 1;
}
/* setup my info */
Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
address_init();
Init_Service_Handlers();
dlenv_init();
atexit(datalink_cleanup);
/* configure the timeout values */
last_seconds = time(NULL);
timeout_seconds = (apdu_timeout() / 1000) * apdu_retries();
/* try to bind with the device */
Send_WhoIs(Target_Device_Object_Instance, Target_Device_Object_Instance);
/* loop forever */
for (;;) {
/* increment timer - exit if timed out */
current_seconds = time(NULL);
/* returns 0 bytes on timeout */
pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
/* process */
if (pdu_len) {
npdu_handler(&src, &Rx_Buf[0], pdu_len);
}
/* at least one second has passed */
if (current_seconds != last_seconds)
tsm_timer_milliseconds((uint16_t) ((current_seconds -
last_seconds) * 1000));
if (Error_Detected)
break;
/* wait until the device is bound, or timeout and quit */
found =
address_bind_request(Target_Device_Object_Instance, &max_apdu,
&Target_Address);
if (found) {
if (invoke_id == 0) {
invoke_id =
Send_Device_Communication_Control_Request
(Target_Device_Object_Instance,
Communication_Timeout_Minutes, Communication_State,
Communication_Password);
} else if (tsm_invoke_id_free(invoke_id))
break;
else if (tsm_invoke_id_failed(invoke_id)) {
fprintf(stderr, "\rError: TSM Timeout!\r\n");
tsm_free_invoke_id(invoke_id);
/* try again or abort? */
break;
}
} else {
/* increment timer - exit if timed out */
elapsed_seconds += (current_seconds - last_seconds);
if (elapsed_seconds > timeout_seconds) {
printf("\rError: APDU Timeout!\r\n");
break;
}
}
/* keep track of time for next check */
last_seconds = current_seconds;
}
return 0;
}
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